Chemistry, 28.08.2019 16:30 jiedwards2815

Heat is given off when hydrogen burns in air according to the equation 2h2 + o2-> 2h2o which of the following is responsible for the heat? thats 2 water molecules at the end of the equation
these are the potential answers:
a) breaking hydrogen bonds gives off energy.
b) breaking oxygen bonds gives off energy.
c) forming hydrogen-oxygen bonds gives off energy.
d) both (a) and (b) are responsible.
e) (a), (b), and (c) are responsible.

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Heat is given off when hydrogen burns in air according to the equation 2h2 + o2-> 2h2o which of t...